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Finding the Fourth Proportional to 7,867.53, 10,855.94 and 4,509.73

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Solution

The fourth proportional to 7,867.53, 10,855.94 and 4,509.73 is: 6,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.53 : 10,855.94 = 4,509.73 : x
  2. Step 2: Convert to fraction form
    7,867.53/10,855.94 = 4,509.73/x
  3. Step 3: Cross multiply
    7,867.53x = 10,855.94 × 4,509.73
  4. Step 4: Simplify right side
    7,867.53x = 48,957,358.30
  5. Step 5: Solve for x
    x = 48,957,358.30/7,867.53
  6. Step 6: Final answer
    x = 6,222.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.